Type-writing machine.



N. F. KNOX.

TYPE WRITING MACHINE.

APPLIOATION FILED MAY 24, 1904.,

Patented Aug. 23, 1910.

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N. F. KNOX.

TYPE WRITING MACHINE.

APPLICATION rmm an 24. 1904.

Patented Aug. 23, 1910.

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UNITED STATES PATENT OFFICE.

NELSON F. KNOX, OF BROOKLYN, NEW YORK, ASSIGNOR TO THE MONARCI-I TYPE- WRITER COMPANY, OF SYRACUSE, NEW YORK, A CORPORATION OF NEW YORK.

TYPE-WRITING MACHINE.

Specification of Letters Patent.

Patented Aug. 23, 1910.

Application filed May 24, 1904. Serial No. 209,475.

To all whom it may concern:

Be it known that I, NELSON F. KNOX, citizen of the United States, and resident of Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Type-Writing Machines, of which the following is a specification.

My invention relates to typewriting machines and more particularly to the means for supporting and guiding the shifting means for the type bar hangers, and the arrangement and construction of the latter.

One object of the invention is to provide an improved construction of hanger which, while it affords a wide bearing for the type bar, occupies a comparatively small space on the segmental support, and which, furthermore, permits a ready adjustment of the type bar and is easy of manufacture.

Another object is to provide a supporting segment so constructed as to allow of a compact arrangement of the type bar hangers.

Another object is to provide an improved bearing and guide for the shifting segment.

' To these and other ends the invention consists in certain features of construction and combinations of devices all as will be hereinafter fully described and particularly pointed out in the concluding claims.

In the accompanying drawings, Figure 1 is a vertical front-to-re-ar sectional view taken centrally of the typewriting machine, parts of which are omitted in order to more clearly disclose the invention. Fig. 2 is a front sectional elevation of the machine taken on a plane just forward of the segment and showing such parts of the machine as are essential to a clear understanding of the invention. Fig. 3 is a plan view of the type bar supporting segment and part of the mechanism for supporting and guiding the same. Fig. 4 is a vertical elevation partly in section of the left hand supporting post or guide for the type bar segment, as viewed from the direction of the arrow in Fig. 2. Fig. 5 is a vertical elevation partly insect-ion of the roller holder. Fig. 6 is a perspective of the same. Fig. 7 is an en larged side elevation and Fig. 8 is an enlarged sectional front elevation of the preferred form of the type bar hanger, a portion of the type bar being shown mounted therein. Figs. 9 and 10 are corresponding views of a modified construction of the type bar hanger. Figs. 11 and 12 are enlarged front elevations of additional modifications of the type bar hanger.

Like parts will be designated by like numerals throughout the several views, wherem- 1 is the base of the machine; 2, corner posts sustaining the top plate 3, which in turn supports the carriage (not shown), the latter carrying the platen 4 which is diagrammatically illustrated in Fig. 1. Key levers 5 having the usual key buttons 6 are pivoted at 7 in the rear of the base, and each key lever has pivoted to it at 8 a sub-lever 9, the lower part of which is formed with a slot 10 embracing a fulcrum bar 11 which passes from side to side of the machine beneath the key levers and is supported in the base of the frame. The upper end of each sub-lever has pivotally attached to it at 12 the rear end of a connecting link 13, the forward end whereof is pivoted at 14c to the type bar 15. The forward end of each type bar is provided with a type block 16 carrying two types and is sustained by a segmental rest or pad 17 supported by several arms, of which only the left-hand one 18 is shown, attached to and extending forwardly from the type bar segment 19.

As appears most clearly in Figs. 2 and 3, the segment 19 is provided at its sides with V-shaped grooves or guide-ways 20 which serve as ways for the anti-friction guide rollers 21. The guide rollers 21 are preferably small wheels beveled to fit the V-shaped groove 20 in the segment, although it will be understood that this particular form of groove and roller is not essential. It is preferred to provide two of the said beveled wheels or rollers 21 on a side, each pair being pivoted in ears 22 formed at the top and bottom of roller holders 23 (Figs. 5 and 6). The upper roller of each rollerholder rotates upon the cylindrical bearing 24: which has a force fit in perforations 25 in the ears 22, each of the said ears being pro- Vided with such a perforation. The lower pivot in both cases is a shouldered screw 26, the screw end 27 whereof screws into the tapped hole 28 in the rear rib 29 of the post 30, the said post being attached in any suitable manner, as by a pin or dowel 31, and a screw 31 to the base 1 of the machine. The front rib 32 of each post 30 is provided with a hole 33 for the shouldered portion of the shouldered screw 26, the said hole being in register with the tapped hole 28. The web 34 joins the front and rear ribs of each of the posts 30 and has formed near its top a hole 35 which is tapped to receive an ad justing screw 36.

In assembling the parts, the roller holders, each carrying its upper roller, are placed in position between the ribs of the posts 30. The lower rollers are then placed so that the perforations through their centers register with the holes 25 in the lower ears of the roller holders and then the shouldered screws 26 are passed through the holes 33, the holes 25 in the front ears of the roller holders, the holes in the lower rollers, the holes 25 in the rear ears of the holders, and, finally, the screw portions 27 are screwed into the screw holes 28 in the rear ribs of the posts 30. It will thus be seen that the shouldered screws 26 serve as pivots for the lower rollers, which turn freely upon the body portions of said screws, as well as to pivotally support the roller holders in the posts 30. The roller holders being in position, the posts 30 are placed upon the base of the machine frame so that the lower rollers accurately fit the V-shaped grooves 20 in the segment 19 and the said posts, and are then secured to the frame as described above, after which the adjusting screws 36 are screwed in against the backs of the holders 23 forcing the roller holders about their pivots 26 toward the type bar segment 19 until the upper rollers likewise engage with the groove or guideway in the said segment.

It will be seen that I provide a fixed part or guide, consisting of the posts 30, which sustains adjustable and removable guiding means for the movable part or segment 19,

thus affording an accurately adjustable, stable and easy guiding means for the segment 19, and which supports the latter as well as guides it when it is vertically reciprocated to change case. This operation of changing case is accomplished by connecting the links 37 to any desired mechanism for shifting the segment, such, for example, as that employed in the Monarch typewriter, or that shown in the patent to Jacob Felbel, No. 657,927, dated September 18, 1900. Since the aspect of the present invention just considered is concerned chiefly with the guiding and supporting means for the segment, it is not deemed necessary to more particularly describe devices for reciprocating it.

Passing now to the method of arrangement and means for sustaining the type bars upon their reciprocatory support, this latter, as has been stated, is a segment 19. Radial slots are formed in the front face of the said segment 19 in two series. The rear walls or bottoms 38 of the slots 39 of one series are in one substantially vertical plane and the rear walls or bottoms 40 of the slots 4C1 of the other and shallower series are in another substantially vertical plane forward of the first plane, but, of course, it is to be understood that the said rear walls maybe formed on any incline that may be found desirable, rather than vertically. The type bar hangers 42 are preferably stamped out of sheet metal and afterward so folded that the bearing walls 43 are substantially U-shaped in cross section and a shank or stem 44 is formed of two plies or folds of metal depending from the bottom of the U (as seen in Flg. 8). In practice the bearing walls 43 are held in fixed relation to each other by a shouldered rivet 15, the ends of which are inserted in perforations near the bottoms of the bearing walls while the hanger is in process of being bent or shaped into its final form. After the shouldered rivet 45 has been dropped into place the bearing walls are pressed nearer to each other until the inner surfaces of the said walls contact with the shoulders of the rivet, whereupon the outer ends of the rivet are up-set or headed. The shoulders of the rivet prevent it from dropping out of the hanger during the heading process. The bearing walls 413 are thus brought into a fixed relation previously determined by the length of the body portion of the shouldered rivet. The two-ply shank or stem 44 is milled down to fit into the slots in the seg' ment 19, and the plies forming the said shank are thus reduced to a thickness less than that of the bearing walls 43. A conical opening 46, which serves as a bearing for one end of the type bar pivot, is formed in one of the bearing walls, and opposite to it in the other wall a perforation L7 is formed which is tapped to receive a screw-threaded, adjustable conical bearing 48, having a nick or slot 19 and provided with a looking or check nut 50. The bearing end of the type bar has formed in it an eye 51 to receive the conical pivot 52 which when in position in the hanger bears in the conical hole 46 and the screw threaded conical. bearing 48. The method thus pursued in assembling this particular form of type bar hanger with its associate type bar is as follows :-The type bar 15, without its pivot 52, is passed into the space between the bearing walls 43 until the eye 51 registers with the bearing 46, and the locking nut 50 is placed between the bearing slot of the hanger and the type bar 15 so that its opening is also in register. The type bar pivot 52 is next passed through the tapped hole 17 and through the opening'in the lock nut 50, and is then pressed or forced half way through the eye 51 on the type bar, the relations of the parts being such that a tight fit between the type bar and its pivot is thus attained. The

adjustable conical bearing 48 is next screwed into'the tapped hole 47 and through the lock nut 50 'until'the type bar pivot 52 is properly positioned in its bearings, whereupon the lock nutv 50 is screwed back against the inner face of the bearing wall 43, thus locking the adjustable bearing 48 in place. As best appears in Fig. 7 the shank or stem 44, and the rear of the bottom of the U-shaped portion of the hanger form a shoulder 53 for positioning the hanger upon the segment, and the front portion of the shank or stem is formed with a slot or cut-away 54 having an inclined or camming rear face 55 for positioning and securing the hanger in place. The right hand ply of the shank or stem 44 is provided with a forwardly extending lug 56 which is perforated at its end to receive the type bar restoring spring 57, the forward end of which is secured to the type bar. In Figs. 7 and 8 the projecting lug 56 is shown as below the camming slot 54; but, although it does not appear in any other detail views, the relative positions of these two parts are reversed in one set or series of hangers and the lug is formed above the cam face (as will appear in an inspection of Figs. 1 and 2) in one set or series, namely, the series which are seated in the shallower slots, and the lugs in the latter series are relatively shorter, so that all of the lugs of the two sets of hangers may extend substantially to the same vertical plane.

In assembling the hangers and type bars upon the segment, the set or series of hangers having the lugs 56 of the greater length and formed below the cam slots are placed upon the segment 19 with their shanks 44 in the deeper slots 39. Set screws 58 are provided for securing this set of hangers in place, the said set screws being received in tapped holes 59 passing centrally through the slots 39 and at such a height that the end of the set screws will abut against the cam faces formed in the stems 44 and when screwed in tight will position and secure the hangers upon the segment. It is not deemed necessary to explain or illustrate this particular feature more fully, since, broadly speaking, it is one of the subjects of the pending application of H. V. Merritt, Serial No. 188,080, and filed January 7 1904. The forward set or series of hangers are similarly secured in place by set screws 60 each screwed into holes 61 which are lower than the first set of screws, the arrangement being such that the successive set screws of the two sets are staggered as appears in Fig. 2.

The position of the segment 19 with relation to the printing point on the platen 4 and the relative depths of the series of slots 39 and 41 are such that a plane passed through the pivots of the forward series of type bars will be parallel to a vertical plane passed through the printing line on the platen and will be the same distance from such a plane as will be a similar and parallel plane passed through the pivots of the rear series of type bars. In other words, the pivots of the two series are equidistant from the printing point.

Although I have shown two series of slots and two series of type bar hangers for the type bars, I do not desire to limit myself to that particular number, as the number of series employed might be varied within the scope of the invention. It will be further evident that the type bars are bent or recessed so that the rear bars will clear the hangers of the forward set; that after they are assembled on the segment the type bars are connected in the usual manner with their associate links 13; that when a finger key 6 is depressed the corresponding type bar is moved to the printing position, as is common in this type of machine; and that when it is desired to change the case, the particular mechanism employed for that purpose, which is connected to the link 37, is properly actuated and the segment 19 is thereby vertically raised to the upper case position, being guided and supported in said movement by the combinations of devices heretofore described, and limited in said movement, in upward direction, by the adjustable stop 64 which is mounted on the segment, contacting with the fixed stop 63, the downward movement being limited by the stop 62, which is likewise mounted on the segment, contacting with the fixed stop 68.

It will be seen by an inspection of the drawings, and more particularly of Figs. 1 and 2, that the arrangement of the hangers is such that the hangers are assembled on the segment in two series, one behind the other, that, viewed from the front of the machine, the bearing walls of any hanger in the forward series, except, of course, the end hangers, overlap one wall of each of the hangers at either side of it in the rear series; that by means of this overlapping or staggered arrangement of the hangers in respect to each other a broad bearing is secured for each type bar; that this arrangement of the hangers is a particularly compact one; that the construction permits of a two-wall hanger for each type bar; and that each type bar and hanger may be removed from the machine without disturbing any of its fellows. The hangers near the ends of each series are spaced wider apart in order that the connection between each type bar and its associate key lever may be vertically arranged, and this affords more room and enables wider hangers to be used near the ends of each series.

The hanger shown in Figs. 9 and 10 is, like the form previously described, constructed of folded sheet metal, but unlike the other form has not an independent bearing in one of the bearing walls, and consequently the method of assembling the bar and hanger is different. After the hanger blank has been partly folded or bent up, the shouldered rivet 65 is dropped into position in appropriate holes in the bearing walls 66 and the folding of the hanger is then completed. The conical pivot 67 is forced into the eye of the type bar 15 before the type bar is assembled in the hanger, the latter operation being then accomplished by forcing the bearing walls 66 apart sufficiently to allow the type bar pivot to be inserted in its bearing, the said walls having enough spring or give to permit of this being accomplished. The ends of the rivet 65 are then headed or upset and the hanger and type bar are ready to be placed in position upon the segment. The projecting lug 68 is similar in this construction to the lug 56, previously described. It will be noted upon an inspection of Fig. 10 that the body portion or the distance between the shoulders of the rivet 65 is somewhat shorter than the distance between the inner surfaces of the bearing walls 66, the difference being sufficient to permit of taking up or adjusting the side walls of the hanger to compensate for considerable wear on the type bar bearing. One reason for employing a shouldered rivet with this style of hanger is, that this form of rivet is more readily headed or upset in the hanger than is an ordinary rivet of uniform diameter throughout.

Fig. 11 illustrates a form of type bar hanger similar to that last described except that instead of being a folded one-piece hanger, it is formed of two pieces 69 and 70 held together by rivets 71 which pass through holes' in the shank or stem portion 72.

Fig. 12 shows a hanger formed of solid metal, the cut-away or slot 73 for the reception of the type bar being milled out.

Certain features of construction and arrangement relating to the type bars and hangers shown herein are set forth and claimed in my companion application, Sr.

No. 209,474 of even date herewith.

What I claim as new and desire to secure by Letters Patent, is

1. I11 a typewriting machine, the combination of a segment having a plurality of series of slots, the slots of the different series being different in depth and type bars so mounted in said slots that any type bar may be removed without disturbing any other type bar, the pivots of all the type bars being equidistant from the printing point and being above the upper face of said segment.

2. In a typewriting machine, the combination of a segmental type bar support having one of its faces slotted to different depths, detachable type bar hangers mounted in the slots in said segmental support, the bearing walls of said hangers being arranged in overlapping order and the edges of the bearing walls of said hangers being separated from the segment, and type bars in said hangers.

3. In a front-strike typewriting machine, the combination of an upright segment having a lurality of series of slots in one of its upright faces, the slots of the series differ-ing in depth, detachable type bar hangers mounted in said series of slots, the bearing walls of said hangers being arranged in overlapping order and the rearmost edges of the bearing walls of said hangers being out of contact with the segment, and type bars in said hangers.

4. In a front-strike typewriting machine, the combination of an upright segment having a plurality of series of slots in one of its upright faces, the slots of the series differing in depth, detachable type bar hangers mounted in said series of slots, the bearing walls of said hangers being arranged in overlapping order and the rearmost edges of the bearing walls of said hangers being out of contact with the segment, and type bars in said hangers, the pivots of the t pe bars mounted in one of the series of s ots being in one arc of a circle and the pivots of the type bars in another of the series of slots being in an arc of another and different circle parallel to the first arc.

5. In a front-strike typewriting machine, the combination of an upright segment having a curved upper face and provided with a plurality of series of slots in one of its upright faces, the depths of the series of slots being different, detachable type bar hangers mounted in the slots of each series and having their bearing walls arranged above the curved upper face of said segment, the bearing walls being disposed in overlapping order, and type bars in said hangers.

6. In a front-strike typewriting machine, the combination of an upright segment having a curved upper face and provided with a plurality of series of slots in one of its upright faces, the depths of the series of slots being different, detachable type bar hangers mounted in the slot-s of each series and having their bearing walls arranged above the curved upper face of said segment, and type bars in said hangers, the pivots of the type bars arranged in one series of slots being in an arc of one circle and the pivots of the type bars arranged in another series of slots being in an arc of another and different circle and parallel with the first arc, the pivots of all the type bars being equidistant from the printing point.

7. In a typewriting machine, the combination of a segment having a series of slots of one depth and another series of slots of a different depth, type bar hangers so mounted in said slots that the bearing walls of said hangers overlap, and type bars in said hangers.

S. In a typewriting machine, the combination of a segment having a series of slots of one depth and another series of slots of a different depth, type bar hangers so-mounted in said slots that the bearing walls of said hangers overlap, and type bars in said hangers, the pivots of the type bars of one series being in an arc of a circle and the pivots of the type bars of the other series being in the arc of another circle parallel to the first arc.

9. In a typewriting machine, the combination of a segment having a plurality of series of slots, the rear walls of the slots of each series being in different parallel planes, detachable hangers mounted in said slots and having the edges of their bearing walls out of contact with said segment, and type bars, so mounted in said hangers that any type bar hanger may be removed without disturbing any other type bar hangers, the pivots of all the type bars being equidistant from the printing point.

10. In a visible writing machine, the combination of an upright segment having a curved upper face, said segment being provided with slots which form a plurality of series, detachable hangers mounted in said slots, each hanger comprising a stem and a spreadout type bar receiving portion, the stems of the type bars fitting in the slots and the type bar receiving portions being seated on and in contact with the curved upper face of the segment, and type bars in said hangers, the pivots of all the type bars being equidistant from the printing point.

11. In a typewriting machine, the combination of a slotted segment, the slots in the segment forming a plurality of series, the rear walls of each series being in a plane different from and parallel to the plane of the walls of another series, the uppermost face of said segment being curved, detachable type bar hangers mounted in the slots in said segment and having their bearing walls lying between the printing point and the curved face of said segment, and type bars in said hangers, the pivots of the type bars of one series being in an arc of a circle and the pivots of the type bars of another series be ing in an arc of a circle parallel to the first arc, the said two series of pivots being all equidistant from the printing point.

12. In a typewriting machine, the combination of a segment, a set of type bars mounted in detachable hangers individually secured upon said segment and another set of type bars mounted in another set of detachable hangers likewise individually secured upon said segment at the same side as the first set of hangers, the rear vertical faces of one set of hangers being in one plane and the rear vertical faces of the other set of hangers being in another and different plane, the bearing walls of the hangers being arranged in overlapping order.

13. In a typewriting machine, the combination of a segment having a curved face,

a set of type bars mounted in detachable hangers individually secured upon said segment and another set of type bars mounted in another set of detachable hangers individually secured at the same side of said segment as the first set, the rear vertical faces of one set of hangers being in one plane and the rear faces of the other set of hangers being in another plane, the rear faces of the both sets of hangers lying between the printing point and the curved face of the segment and being out of contact with the segment, the pivots of the type bars of one set being in an arc of a circle and the pivots of the type bars of the other set bein in an arc of another circle parallel to the first arc, the pivots of all the type bars in the machine being equidistant from the printing point.

14. In a typewriting machine, the com-- cent to the segmentof the other set of hangers being in another and different plane, and the screws by which the said type bar hangers are secured to the segment having a staggered arrangement, the pivots of all the type bars in the machine being equidistant from the printing point.

15. In a typewriting machine, the combination of a segment, a set of type bars mounted in hangers individually secured upon said segment and another set of type bars mounted in another set of hangers like wise individually secured upon said segment at the same side as the first set of hangers, the vertical faces adjacent to the segment of one set of hangers being in one plane and the faces adjacent to the segment of the other set of hangers being in another and different plane, the screws by which the said type bar hangers are secured to the segment having a staggered arrangement, and the bearing walls of said hangers being arranged in overlapping order, the pivots of all the type bars in the machine being equidistant from the printing point.

16. In a typewriting machine, the combination of a segment having a curved face and being provided with a series of slots of one depth and another series of slots of a different depth, type bar hangers secured in said slots by screws having a staggered arrangement, the edges of the bearing walls of said hangers being out of contact with the segment and being arranged between the printing point and the curved face of said segment, and type bars in said hangers, the pivots of all type bars being equidistant from the printing point.

17. In a typewriting machine, the combination of a segment having a series of slots of one depth and another series of slots of a different depth, type bar hangers so mounted in said slots that the bearing walls of said hangers overlap and the screws by which said hangers are secured are staggered, and type bars in said hangers.

18. In a typewriting machine, the combination of a segment slotted to different depths, sets of type bars, sets of type bar hangers, each hanger having a slotted portion and an inclined face, set screws supported in the segment and projecting into the slotted portions of the hangers and hearing against the inclined faces of the hangers, and the arrangement being such that the bearing walls of the hangers overlap.

19. In a typewriting machine, the combination of a segment slotted to different depths, sets of type bars, sets of type bar hangers, each hanger having a slotted portion and an inclined face, set screws supported in the segment and projecting into the slotted portions of the hangers and hearing against the inclined faces of the hang-v ers, and the arrangement being such that the bearing walls of the hangers overlap and that the pivots of the type bars of one series are in an arc of a circle, and the pivots of the type bars of the other series are in the arc of another circle parallel to the first are.

20. In a typewriting machine, the combination of a segment slotted to different depths, a series of U-shaped detachable hangers having shanks or stems fitting into the slots of said segment, and type bars in said U'shaped hangers, the pivots of all the type bars being equdistant from the printing point.

21. In a typewriting machine, the combination of a segment having a, plurality of series of slots, the slots of the different series being different in depth, U-shaped detachable hangers having central stems mounted in said series of slots, and type bars in said hangers, the pivots of all the type bars being equidistant from the printing point.

22. In a typewriting machine, the combi-.

nation of a segment having a plurality of series of slots, the slots of the different series being different in depth, U-shaped detachable hangers having stems mounted in said series of slots and type bars in said hangers, the pivots of the type bars of one series being in an arc of a circle and the pivots of the other type bars of the other series being in an arc of another circle parallel to the first arc.

23. In a typewriting machine, the combination of a segment slotted to different depths, sets of type bars, sets of U-shaped hangers each having a central shank, said shank having a slotted portion and an in clined face, set screws supported in the segment and projecting into the slotted portions of the said U-sha )ed hangers and bearing against inclined aces of the hangers, and the arrangement being such that the bearing walls of the hangers overlap.

24. In a typewriting machine, the combination of a segment slotted to different depths, sets of type bars, sets of U-shaped hangers each having a central shank, said shank having a slotted portion and an inclined face, set screws supported in the segment and projecting into the slotted portions of the said U-shaped hangers and hearing against the inclined faces of the hangers and the arrangement being such that the bearing walls of the hangers overlap, the pivots of the type bars of one set being in an arc of a circle and the pivots of the type bars of the other set being in an arc of another circle arallel to the first are.

25. n a typewriting machine, the combination of a substantially U-shaped hanger having a shank or stem, said stem having a positioning shoulder and a cam face by which it is attached to and seated upon a segment and having also a pro'ecting lug adapted to receive one end of t e type bar restoring spring, and a type bar having a pivot supported in the jaws of said U-shaped hanger.

26. In a typewritin machine, the combination of a U-shaped Iianger made of sheet metal and having a central shank or stem, a shouldered rivet for securin the bearin walls of said hanger in a fixe relation, an an adjustable conical bearing for varyin the relation between the hearings in sai walls.

27. In a typewriting machine, the combination of a U-shaped hanger having a central shank or stem, a shouldered rivet for securin the bearing walls of said hanger in a fixe relation, and separate means for varying the relation between the bearings in said walls.

28. In a typewriting machine, the combination of a U-shaped hanger having a shank or stem, a shouldered rivet for securin the bearing walls of said han er in a fixe relation, and a screw threade adjustable bearing for varying the relation between the bearings in said walls.

29. In a typewriting machine, the combination of a U-shaped hanger having a shank or stem, a shouldered rivet for securing the bearing walls of said hanger in a fixed relation, an adjustable conical bearing for varying the relation between the hearings in said walls, and means for locking said conical bearing in position.

30. In a typewriting machine, the combination of a U-shaped hanger having a central shank or stem, a shouldered rivet for securing the bearing walls of said hanger in a fixed relation, an adjustable conical bearing for varying the relation between the bearings in said walls, and a nut for locking said conical bearing in position.

31. In a typewriting machine, a folded sheet metal hanger having a positioning shoulder and a cam face by which it is attached to and seated upon its segment and having also a projecting lug adapted to receive one end of the type bar restoring spring.

32. In a typewriting machine, a hanger comprising bearing walls and a two -ply shank or stem, the parts forming the walls being thicker than the parts forming the stem, the said stem having a positioning shoulder and a cam face by which it is attached to and seated upon its support.

33. In a typewriting machine, a hanger comprising bearing walls and a two-ply shank or stem, the parts forming the walls being thicker than the parts forming the stem, the said stem having a positioning shoulder and a cam face by which it is attached to and seated upon its support and having also a projecting lug adapted to receive one end of the type bar restoring spring.

34. I11 a typewriting machine, a hanger comprising bearing walls and a two-ply shank or stem, the parts forming the walls being thicker than the parts forming the stem, said stem having a should-er and a cam face by which it may be attached to and seated upon its support and one of the plies forming said stem having a lug adapted to receive one end of a type bar restoring spring.

35. In a typewriting machine, the combination of a hanger, a shouldered rivet for securing the bearing walls of said hanger in a fixed relation, an adjustable conical bearing for varying the relation between the bearings in said walls, and a nut for locking said conical bearing in position.

36. In a typewriting machine and in a case shift mechanism, the combination of a fixed part or guide, a movable part or type bar support, a roller holder attached pivotally to one of said parts, and rollers journaled in said holder and co-acting with said type bar support.

37. In a typewriting machine and in a case shift mechanism, the combination of a fixed part or guide, a movable part or type bar support, a pair of roller holders each pivotally attached to one of said parts at one side of the machine, and rollers mounted in said roller holders and co-acting with said type bar support.

38. In a typewriting machine and in a case shift mechanism, the combination of a fixed part or guide, a movable part or type bar support, a pair of removable roller hold ers, each pivotally connected to one of said parts and each supporting two rollers, said rollers co-acting with said type bar support.

39. In a typewriting machine and in a case shift mechanism, the combination of a fixed part or guide, a movable part or type bar support, a pair of roller holders each mounted on one of said parts, each of said roller holders supporting a pair of rollers, and means for adjusting one roller of each pair.

etO. In a typewriting machine and in a case shift mechanism, the combination of a fixed part or guide, a movable part or type bar support, a pair of roller holders each mounted on one of said parts, each of said roller holders supporting a pair of rollers, and means for adjusting one roller of each pair in a direction substantially at right angles to the path of travel of the said shiftable type bar support.

41. In a typewriting machine and in a case shift mechanism, the combination of a shiftable type bar support, a pair of roller holders attached to posts on the machine frame, rollers, set screws for adjusting said roller holders, and grooves in said shiftable support to co-act with said rollers.

42. In a typewriting machine and in a case shift mechanism, the combination of fixed part or guide, a movable part or type bar support, a roller holder attached to one of said parts, rollers mounted in said holder and co-acting with said type bar support, and adjusting means cooperative with said roller holder to vary the normal position thereof.

43. In a typewriting machine and in a case shift mechanism, the combination of a fixed part or guide, a movable part or type bar support, a roller holder -pivotally attached to one of said parts, and rollers mounted in said holder and co-acting with said type bar support.

44. In a typewriting machine and in a case shift mechanism, the combination of a fixed part or guide, a movable part or type bar support, a removable roller holder pivotally attached to one of said parts, and rollers mounted in said holder and co-acting with said type bar support.

bar support, a removable roller holder attached to one of said parts, rollers mount ed in said holders and co-acting with said type bar support, and means for adjusting said rollers.

46. In a typewriting machine and in a case shift mechanism, the combination of a fixed part or guide, a movable part or type bar support, a roller holder pivotally attached to one of said parts, rollers mounted in said roller holder and co-acting with said type bar support, and means for adjusting said rollers.

47. In a typewriting machine and in a case shift mechanism, the combination of fixed parts or guides, a movable part or type bar support, removable roller holders each pivotally attached to one of said parts, rollers mounted in said holders, and means for adjusting said rollers.

48. I11 a typewriting machine and in a case shift mechanism, the combination of fixed parts or guides, a movable part or type bar support, removable roller holders each attached to one of said parts, a pair of rollers mounted in each of said holders and co-acting with said type bar support, and means for adjusting one roller of each pair.

49. In a typewriting machine and in a case shift mechanism, the combination of fixed parts or guides, a movable part or type bar support, removable roller holders each attached to one of said parts, a pair of rollers mounted in each of said holders and co-acting with said type bar support, and means for adjusting one roller of each pair in a direction substantially at right angles to the path of travel of the said type bar support.

50. In a typewriting machine and in a case shift mechanism, the combination of fixed parts or guides, a movable part or type bar support, roller holders each pivotally attached to one of said parts, a pair of rollers mounted in each of said holders and co-acting with said type bar support, and means for adjusting one roller of each pair.

51. In a typewriting machine and in a case shift mechanism, the combination of fixed parts or guides, a movable part or type bar support, roller holders each pivotally attached to one of said parts, a pair of rollers mounted in each of said holders and co-acting with said type bar support, and means for adjusting one roller of each pair in a direction substantially at right angles to the path of travel of the said type bar support.

52. In a typewritingmachine and in a case shift mechanism, the combination of fixed parts or guides, a movable part or type bar support, removable roller holders each pivotally attached to one of said parts, a pair of rollers mounted in each of said holders and co-acting with said type bar support, and means for adjusting one roller of each pair in a direction substantially at right angles to the path of travel of the said type bar support.

53. In a typewriting machine and in a case shift mechanism, the combination of fixed parts or guides, a movable part or type bar support, removable roller holders each pivotally attached to one of said parts, a pair of rollers mounted in each of said holders and co-aeting with said type bar support, and means for adjusting one roller of each pair in a direction substantially at right angles to the path of travel of the said type bar support.

54. In a typewriting machine, the combination of a segment, type bars mounted thereon, posts rising from the base of the machine frame, a pair of roller holders pivotally attached to said posts, rollers mounted in said roller holders, and set screws for adjusting said roller holders, said segment being provided with grooves which cooperate with said rollers.

55. In a typewriting machine, the combination of a segment, type bars thereon, posts detaehably secured to the machine frame, a pair of removable roller holders pivotally connected. to said posts, rollers in said roller holders, and means for adjusting said roller holders, said segment having grooves cooperating with said rollers.

Signed at the borough of Manhattan, city of New York, in the county of New York and State of New York this 23rd day of May A. D. 1904.

NELSON F. KNOX.

Witnesses:

MORRIS W. Poon, E. M. WELLS. 

